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15 cards from this deck
Substances that change colour based on pH of solution
Identify end point when acid and base neutralise
Weak acids
HIn⇌H++In−\text{HIn} \rightleftharpoons \text{H}^+ + \text{In}^-HIn⇌H++In−
Indicator molecule with hydrogen attached (acidic form)
Indicator molecule without hydrogen (basic form)
3−53-53−5
Red in acid, yellow in base
5−85-85−8
Red in acid, blue in base
8−108-108−10
Colourless in acid, pink in base
About 2 pH units
Mixture of several different indicators
Green
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